When Purin sees Jobko through Serufu’s window, she heads over and gets introduced to the girl genius. The two end up hitting it off. Then, the next morning, Purin wakes to find Jobko in her room saying that she’ll be living there—effective immediately.
Then you should have used 
the one at the hotel.
.كان عليك استعمال حمّام الفندق إذًا
Dann hättest du doch auch
im Hotel baden können …
Deberías haberte bañado en el hotel.
Deberías haberte bañado en el hotel.
T’avais qu’à retourner à l’hôtel.
Avresti dovuto usare quello dell'hotel.
Então você deveria
ter usado a do hotel.
Сходила бы тогда в отеле.